Instant email for your agent.

LobsterMail is email infrastructure built for AI agents. It lets your agent provision its own email inbox — no human signup, API keys, or configuration required. Install the SDK, and your agent can send and receive email in seconds.

With LobsterMail, the agent creates its own inbox. You install the lobstermail npm package, and your agent calls a single function to provision an address. There's no human account creation step — the agent handles it autonomously.

Sharing your personal inbox means your agent sees every private message, and one bad prompt injection could send emails as you. LobsterMail gives your agent a dedicated address so your personal inbox stays untouched. Your agent gets its own identity — separate credentials, separate reputation, separate risk.

Yes. Every incoming email is scanned for prompt injection attempts before your agent processes it. LobsterMail flags suspicious content — including injection patterns, untrusted senders, embedded scripts, and oversized payloads — so your agent can handle them safely instead of blindly executing instructions from strangers.

LobsterMail works with OpenClaw, LangChain, CrewAI, AutoGen, and any agent that can call a JavaScript/TypeScript SDK. It also ships as an MCP server, so it works directly with Claude Desktop, Cursor, and Windsurf.

AgentMail requires a human to sign up, create API keys, and configure the agent's environment. LobsterMail lets the agent provision its own inbox — no human in the loop. LobsterMail also offers unlimited inboxes on the free tier, while AgentMail caps at 3 inboxes before charging $20/month.

The free tier includes unlimited inboxes with send and receive — no credit card required. The Pro plan at $5/month adds custom domains (send from agent@yourcompany.com), a dedicated IP, no sending limits, and priority support.

Yes. On the Pro plan, you can send from your own domain — like support@yourcompany.com. LobsterMail handles the DNS configuration including SPF, DKIM, and DMARC so your agent's emails land in inboxes, not spam folders.

Yes, two ways. You can poll the API for new messages, or set up webhooks so LobsterMail pushes incoming emails to your agent's endpoint the moment they arrive. Webhooks are available on all tiers.

Agents use LobsterMail to triage support inboxes, manage scheduling and meeting coordination, send follow-ups to customers, generate daily email digests, unsubscribe from newsletters, and communicate with other agents. If it involves reading or writing email, an agent can handle it.